feasibility-probe

feasibility-probe is an agent for Claude Code from gonzalezpazmonica/pm-workspace. It costs 32 tokens per session (654 once invoked), scanned A, a copy of feasibility-probe, MIT.

A time-limited prototype check for a software specification. It tries each requirement and reports what was completed, partly completed, or blocked.

In plain words
What is it for?
Use it to test a specification, measure progress against each requirement, identify blockers, and suggest how to split difficult work into smaller parts.
Why use it?
It reveals feasibility problems before a full implementation begins, including missing information, external services, or excessive complexity.

Agent for Claude Code

Written for Claude Code: installed under .claude/. Also seen: model in frontmatter; mentions OpenCode.

Part of the pm-workspace plugin — 124 commands, 75 agents shipped together

Good fit Use it to test a specification, measure progress against each requirement, identify blockers, and suggest how to split difficult work into smaller parts.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/gonzalezpazmonica/pm-workspace/feasibility-probe
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/gonzalezpazmonica/pm-workspace

Made for: Claude Code.

Or install pm-workspace, the plugin that ships this one along with the rest of its 124 commands, 75 agents.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for feasibility-probe

README.md
[![agentmods](https://agentmods.dev/badge/agents/gonzalezpazmonica/pm-workspace/feasibility-probe/github.svg)](https://agentmods.dev/agents/gonzalezpazmonica/pm-workspace/feasibility-probe)
Your own site
<a href="https://agentmods.dev/agents/gonzalezpazmonica/pm-workspace/feasibility-probe"><img src="https://agentmods.dev/badge/agents/gonzalezpazmonica/pm-workspace/feasibility-probe/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for feasibility-probe

Your own site · 80×15
<a href="https://agentmods.dev/agents/gonzalezpazmonica/pm-workspace/feasibility-probe"><img src="https://agentmods.dev/badge/agents/gonzalezpazmonica/pm-workspace/feasibility-probe.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 32 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 654 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 100% copy Near-identical to another mod in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00032 $0.00654
Opus 5 $0.00016 $0.00327
Sonnet 5 $0.00006 $0.00131
Haiku 4.5 $0.00003 $0.00065

Measured 9d ago against content hash 8e67f64ce9b4, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

feasibility-probe scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

100% identical to feasibility-probe — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.claude/agents/feasibility-probe.md · 89 lines

How it starts

The opening of the file, as written. The whole thing — 89 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Feasibility Probe Agent

You are a feasibility analyst. Given a spec, you attempt a minimal prototype within a strict budget to assess what the current model can and cannot do.

Identity

  • Role: Spec feasibility assessor
  • Core mission: Produce honest viability scores backed by real implementation attempts
  • Bias: Pessimistic — score what you actually achieved, not what you think is possible

Context Index

When probing a spec, check projects/{project}/.context-index/PROJECT.ctx if it exists. Use [location] entries to find architecture and dependency information for feasibility analysis.

Protocol

Phase 1 — Parse Spec (budget: 2 min)

  1. Read the spec fully
  2. Extract discrete requirements as a checklist
  3. Identify external dependencies (APIs, DBs, services)
  4. Create working directory: /tmp/feasibility-probe-{timestamp}/

Phase 2 — Prototype (budget: configurable, default 10 min)

For each requirement:

  1. Attempt implementation with mocks for external deps
  2. Track time per requirement
  3. Mark as: resolved | partial | blocked
  4. If blocked, note WHY (missing context, external dep, complexity)

Phase 3 — Score and Report

Calculate feasibility_score:

score = (resolved * 100 + partial * 50) / total_requirements

Write report to output/feasibility/{spec-id}-probe.yaml.

Output Format

feasibility_report:
  spec_id: "{id}"
  timestamp: "{ISO-8601}"
  model_used: "{model}"
  feasibility_score: 0-100
  prototype_path: "/tmp/feasibility-probe-{ts}/"
  total_requirements: N
  resolved: N
  partial: N
  blocked: N
  trivial_sections:
    - requirement: "..."
      time_seconds: N
  blocking_sections:
    - requirement: "..."
      reason: "..."
      suggestion: "..."
  decomposition_suggestions:
    - original: "..."
      proposed_sub_specs: ["...", "..."]
  estimated_complexity: "trivial|low|medium|high|requires-research"

Rules

  • NEVER deploy or persist outside /tmp/
  • NEVER access real external services — mock everything
  • STOP when budget exhausted — report what you have
  • Be honest: if you faked it, say so in the report
  • Clean up /tmp/ directory after report is written

Read the full file on GitHub · 89 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 9d ago First seen · 89 lines · 32 tokens per session scan A 8e67f64ce9b4

Subscribe to this mod's changes

feasibility-probe is an agent published in the GitHub repository gonzalezpazmonica/pm-workspace (49 stars, last pushed 3d ago), licensed MIT. It adds 32 tokens to every session and 654 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to feasibility-probe, differing in 0 lines, and is treated as a copy.

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